Magical Beast · SM +1 Phase Spider [Monster Manual, page 207]
Attributes
ST16
DX12
IQ7
HT11
HP16
Will10
Per12
FP11
Basic Speed5.75
Basic Move7
Dodge8
DR1
Melee attacks
| Usage | Level | Damage | Reach |
|---|---|---|---|
| FangsFangs (14): thrust 1d+1 impaling (KYOS: 2d+1 impaling) plus follow-up 1d-1 toxic (5 1-minute cycles, resisted by HT-3, -2 HT after loss of 1/3 HP), Reach C. | 14 | thrust 1d+1 impaling (KYOS: 2d+1 impaling) plus follow-up 1d-1 toxic (5 1-minute cycles, resisted by HT-3, -2 HT after loss of 1/3 HP) | C |
| Ethereal JauntEthereal Jaunt (12): The phase spider can slip into the Ethereal Plane from the Material Plane and the other way around as per Jumper (p. B64). The jaunt requires a single Concentrate maneuver. After using this ability, he cannot reactivate it for 5 seconds. | 12 | The phase spider can slip into the Ethereal Plane from the Material Plane and the other way around as per Jumper (p. B64). The jaunt requires a single Concentrate maneuver. After using this ability, he cannot reactivate it for 5 seconds | — |
Traits (11)
- Clinging
- Cold-Blooded (50°)
- Extra Legs (Eight Legs)
- Infravision
- Injury Tolerance (No Head, No Neck)
- Night Vision 9
- No Fine Manipulators
- Peripheral Vision
- Restricted Diet (Carnivore)
- Semi-Upright
- Subsonic Hearing (Biological (Passive); Melee Attack, Reach C)
Skills (2)
- 14Brawling
- 14Stealth
Notes
- GCS ancestry draft: gcs/phase-spider.gct
- Source template total: 232 points.
- Library-rebuilt template total: 232 points.
- CER was computed from parsed Typical Stats using the Dungeons On Automatic baseline CER path.
- Review attacks, special abilities, encounter frequency, treasure, grappling, and GCS modifiers before approval.
- Poison (follow-up on Sharp Teeth): Toxic Attack 1d-1 (Cyclic, 1 minute, 4 cycles, Resistible, +80%; Follow-Up, Sharp Teeth, +0%; Resistible, HT-3, -15%; Symptoms, 1/3 HP, -2 HT, +30%) Resolve as stated by the construction; the source gives no separate resolution text.
Encounter rating
CER23
Offense15
Protection8
Threat tierminor
Appearing6
Wandering4
Tags
- srd-3-5
- srd-5-1
- magical-beast
GCS v5 downloads
Where this one came from
- Source record
- Phase Spider [Monster Manual, page 207]
- Source system
- gurps_4e_fan_conversion / author_permission
- Released under
- cc_by_4_0
- Conversion
- 0.2.0-reviewed
- Review status
- approved
- Credit
- Original GURPS conversion by Enraged Eggplant, from Monsters (May 11, 2024); adapted and republished with permission.
- GCS ancestry draft: gcs/phase-spider.gct
- Source template total: 232 points.
- Library-rebuilt template total: 232 points.
- CER was computed from parsed Typical Stats using the Dungeons On Automatic baseline CER path.
- Issue #5: 2 special ability construction(s) restored (Poison). No disabling construction on this record carries a cost the affliction term can score.
- CER recomputed from the reviewed Typical Stats through the canonical Dungeons on Automatic CER path: OR 15, PR 8, CER 23, threat tier minor.
- Conversion baseline reported OR 16, PR 8, CER 24 (tier minor). The reviewed values come from the consumer CER implementation, which rounds damage once after the damage-type multiplier and credits ranged accuracy; the conversion baseline ceilinged the damage base first and ignored range.
- Encounter metadata derived (gregarious): average number appearing 6, wandering weight 4. Encounter metadata derived for 0.2.0 from the reviewed threat tier and creature class (appearing: minor 4 / standard 2 / major 1 / severe 1, forced to 1 for solitary classes — including swarms, which are a single multi-body creature — and raised to 6 for gregarious minor creatures; wandering weight: minor 4 / standard 3 / major 2 / severe 1). The fan-conversion source states no appearing-in-numbers or wandering values, so these are derived, not source mechanics.
- Lair, treasure, and grappling remain unpopulated in 0.2.0 by package policy: the authorized fan-conversion source states no lair, treasure, or grappling values, and review declines to invent them. See review/policy/0.2.0-empty-field-policy.md.
- Review approved by automated-mechanical-review on 2026-07-26 (batch ee-2026-07-26-b4-special-mechanics); GCS fidelity check passed, DOA playability check passed.
- Special-mechanics record. Mechanics the CER path cannot price are named per record in review/reports/cer-audit.md rather than folded into the number, and encounter counts are capped where a save-or-disable attack is present.
Enraged Eggplant GURPS monster conversions; used, adapted, and republished with unrestricted permission from the author. Portrait and tokens are AI-generated original art. Sources and credits.